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Supertribe Cecidomyiidi

galls/spots on oak - Polystepha quercifolia Cecidomyiidae gall on Oak - Polystepha pilulae Unknown Fly Another larva from gall on an oak leaf - Polystepha pilulae Cecidomyiidae - Planetella St. Andrews stem gall on Cornus florida SA_G121 2017 1 - Resseliella clavula The real Taxodiomyia taxodii - Taxodiomyia taxodii Asphondylia female? - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Bibionomorpha (Gnats, Gall Midges, and March Flies)
Superfamily Sciaroidea (Fungus Gnats and Gall Midges)
Family Cecidomyiidae (Gall Midges and Wood Midges)
Subfamily Cecidomyiinae (Gall Midges)
Supertribe Cecidomyiidi
Numbers
Includes Aphidoletini, Asphondyliini, Cecidomyiini, Clinodiplosini, Lestodiplosini, Mycodiplosini, and several unplaced genera.

64 Nearctic genera (1973)
Identification
Typically 12 flagellomeres. Male flagellomeres are binodal (except in most Asphondyliini) and their circumfila are looped.

Females have cylindrical flagellomeres. Most adults have a long, narrow lobe at the top of the head behind the eyes, which bears a pair of large proclinate setae. Female cerci are free, but may be closely appressed or so reduced that they appear to be fused. The aedeagus is free and appears more sclerotized than in the Lasiopteridi. Ventral papillae of the larvae are generally asetose. (1)


Key to genera in (Gagne 1973)
Remarks
This group contains gall makers, fungus feeders, and predators. (1)
Print References
Gagné, R. J. (1973). A generic synopsis of the Nearctic Cecidomyiidi (Diptera: Cecidomyiidae: Cecidomyiinae). Annals of the Entomological Society of America, 66(4), 857-889.
Works Cited
1.The Plant-Feeding Gall Midges of North America
Raymond J. Gagné. 1989. Cornell University Press.